Abstract

A simple laminar pipe-flow method for hot-wire anemometer calibration in the low-velocity range is described. The stable flow was generated by draining water from an air-tight container at a constant rate. The influence of humidity variations between calibration and application was analysed. Calibration results were compared with results from another available device. One measurement of the laminar pipe-flow velocity profile using the calibration results was also performed. The present method was demonstrated to be a simple, but accurate, means for low-speed hot-wire anemometer calibration.

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